diff --git a/rpcs3/Emu/RSX/Common/BufferUtils.cpp b/rpcs3/Emu/RSX/Common/BufferUtils.cpp
index 88cce470d8..8780d3b14b 100644
--- a/rpcs3/Emu/RSX/Common/BufferUtils.cpp
+++ b/rpcs3/Emu/RSX/Common/BufferUtils.cpp
@@ -262,7 +262,7 @@ bool is_primitive_native(rsx::primitive_type draw_mode)
  * see http://www.gamedev.net/page/resources/_/technical/graphics-programming-and-theory/polygon-triangulation-r3334
  */
 
-size_t get_index_count(rsx::primitive_type draw_mode, unsigned initial_index_count)
+u32 get_index_count(rsx::primitive_type draw_mode, u32 initial_index_count)
 {
 	// Index count
 	if (is_primitive_native(draw_mode))
@@ -284,7 +284,7 @@ size_t get_index_count(rsx::primitive_type draw_mode, unsigned initial_index_cou
 	}
 }
 
-size_t get_index_type_size(rsx::index_array_type type)
+u32 get_index_type_size(rsx::index_array_type type)
 {
 	switch (type)
 	{
diff --git a/rpcs3/Emu/RSX/Common/BufferUtils.h b/rpcs3/Emu/RSX/Common/BufferUtils.h
index 6c9918ba3b..1edcef45a6 100644
--- a/rpcs3/Emu/RSX/Common/BufferUtils.h
+++ b/rpcs3/Emu/RSX/Common/BufferUtils.h
@@ -20,12 +20,12 @@ bool is_primitive_native(rsx::primitive_type m_draw_mode);
 /**
  * Returns a fixed index count for emulated primitive, otherwise returns initial_index_count
  */
-size_t get_index_count(rsx::primitive_type m_draw_mode, unsigned initial_index_count);
+u32 get_index_count(rsx::primitive_type m_draw_mode, u32 initial_index_count);
 
 /**
  * Returns index type size in byte
  */
-size_t get_index_type_size(rsx::index_array_type type);
+u32 get_index_type_size(rsx::index_array_type type);
 
 /**
  * Write count indexes using (first, first + count) ranges.